635-2001/02 – Heat Transfer and Fluid Mechanics (STaP)
Gurantor department | Department of Thermal Engineering | Credits | 6 |
Subject guarantor | doc. Ing. Marek Velička, Ph.D. | Subject version guarantor | prof. Ing. Miroslav Příhoda, CSc. |
Study level | undergraduate or graduate | | |
| | Study language | English |
Year of introduction | 2014/2015 | Year of cancellation | 2022/2023 |
Intended for the faculties | FMT | Intended for study types | Bachelor |
Subject aims expressed by acquired skills and competences
Student will be able:
- to demonstrate the feature of criteria of similarity,
- to solve the pressure losses during the flow of fluids,
- to describe the fundamental principle in hydromechanics,
- to solve simple examples focused on heat transfer (conduction, convection, radiation).
Teaching methods
Lectures
Seminars
Individual consultations
Tutorials
Summary
Theory of similarity, criterion equations. Flow: statics and dynamics of fluids, flow of real fluids, pressure losses, flow of gases in furnace systems. Conduction heat transfer: analytical and numerical solution of steady and transient problems. Convective heat transfer: natural, forced, heat transfer between fluid and solid surface. Radiation heat transfer: general laws, radiation properties of bodies, exchange of radiation energy between solid bodies, radiation of gases, vapours and their mixtures.
Compulsory literature:
Recommended literature:
Way of continuous check of knowledge in the course of semester
Two points assessment of check exams.
E-learning
http://katedry.fmmi.vsb.cz/635/; www.person.vsb.cz;
There is a continuous adding of e-learning elements into teaching
Other requirements
Other requirements for students are not
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
1. Constant of similarity, criterion of similarity (simplex, complex). Criterion equations.
2. Basic terms of flow. Physical properties of fluids. Basic types of pressure. Pressure loss. Statics of one gas. Calculation of atmospheric pressure. Statics of two gases. Euler's equation of fluid statics. Differential equation for the pressure function.
3. Fluid flow - classification. General equation of continuity. Continuity equation for one-way flow. Euler's equation of motion, total derivative. Navier – Stokes equation. Bernoulli's equation.
4. Types of real fluid flow. Reynolds criterion. Laminar flows in tubes. Velocity profile. Hagen - Poiseuille law. Turbulent flow. Boundary layer.
5. Hydraulic losses - pressure loss, height loss. Friction losses, Darcy - Weisbach relationship. Types of roughness. Effect of roughness on hydraulic resistance. Coefficient of friction in circular pipes - 5 areas. Local losses.
6. Gas discharge openings. Gas discharge at low speeds. Gas discharge at high speeds. The flow in the high speed. Convergent nozzle, Laval nozzle. Height of chimney.
7. Modes of heat transfer. Basic terms in heat conduction. Fourier's law. Thermal conductivity for gases, liquids and solids. Fourier heat equation. Coefficient of thermal conductivity. Conditions of uniformity.
8. Steady one - dimensional heat conduction through one and multi-layer planar and cylindrical wall at boundary conditions I., II. and III. kind - temperature and heat flux.
9. Multidirectional steady tasks. Analytical solutions - method of separation of variables. Numerical solutions.
10. Transient heat conduction. Numerical solution, stability, accuracy.
11. Fourier - Kirchhoff equations for convective heat transfer. Heat transfer between fluid and solid surface. Velocity and thermal boundary layer. Specific values of the coefficient k. The use of similarity theory for the solution of convective heat transfer. Influence of temperature changes on fluid convection heat.
12. Physical principles of radiation. Basic terms. Planck's law. Wien's displacement law. Stefan-Boltzmann law. Lambert's law. Radiation properties. Kirchhoff's law.
13. Spectral radiation properties. Grey body. Radiation between bodies. View factor (angular coefficient). Fundamental rules. Radiation between two parallel flat surfaces, the effect of shielding. Radiation between two curved surfaces. Gaseous radiation. Basic laws. Radiation of the gas mixtures.
Conditions for subject completion
Conditions for completion are defined only for particular subject version and form of study
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
Předmět neobsahuje žádné hodnocení.